int ompi_mpi_finalize(void)
{
int ret;
static int32_t finalize_has_already_started = 0;
opal_list_item_t *item;
struct timeval ompistart, ompistop;
ompi_rte_collective_t *coll;
ompi_proc_t** procs;
size_t nprocs;
/* Be a bit social if an erroneous program calls MPI_FINALIZE in
two different threads, otherwise we may deadlock in
ompi_comm_free() (or run into other nasty lions, tigers, or
bears) */
if (! opal_atomic_cmpset_32(&finalize_has_already_started, 0, 1)) {
/* Note that if we're already finalized, we cannot raise an
MPI exception. The best that we can do is write something
to stderr. */
char hostname[MAXHOSTNAMELEN];
pid_t pid = getpid();
gethostname(hostname, sizeof(hostname));
opal_show_help("help-mpi-runtime.txt",
"mpi_finalize:invoked_multiple_times",
true, hostname, pid);
return MPI_ERR_OTHER;
}
ompi_mpiext_fini();
/* Per MPI-2:4.8, we have to free MPI_COMM_SELF before doing
anything else in MPI_FINALIZE (to include setting up such that
MPI_FINALIZED will return true). */
if (NULL != ompi_mpi_comm_self.comm.c_keyhash) {
ompi_attr_delete_all(COMM_ATTR, &ompi_mpi_comm_self,
ompi_mpi_comm_self.comm.c_keyhash);
OBJ_RELEASE(ompi_mpi_comm_self.comm.c_keyhash);
ompi_mpi_comm_self.comm.c_keyhash = NULL;
}
/* Proceed with MPI_FINALIZE */
ompi_mpi_finalized = true;
/* As finalize is the last legal MPI call, we are allowed to force the release
* of the user buffer used for bsend, before going anywhere further.
*/
(void)mca_pml_base_bsend_detach(NULL, NULL);
nprocs = 0;
procs = ompi_proc_all(&nprocs);
MCA_PML_CALL(del_procs(procs, nprocs));
free(procs);
#if OMPI_ENABLE_PROGRESS_THREADS == 0
opal_progress_set_event_flag(OPAL_EVLOOP_ONCE | OPAL_EVLOOP_NONBLOCK);
#endif
/* Redo ORTE calling opal_progress_event_users_increment() during
MPI lifetime, to get better latency when not using TCP */
opal_progress_event_users_increment();
/* check to see if we want timing information */
if (ompi_enable_timing != 0 && 0 == OMPI_PROC_MY_NAME->vpid) {
gettimeofday(&ompistart, NULL);
}
/* NOTE: MPI-2.1 requires that MPI_FINALIZE is "collective" across
*all* connected processes. This only means that all processes
have to call it. It does *not* mean that all connected
processes need to synchronize (either directly or indirectly).
For example, it is quite easy to construct complicated
scenarios where one job is "connected" to another job via
transitivity, but have no direct knowledge of each other.
Consider the following case: job A spawns job B, and job B
later spawns job C. A "connectedness" graph looks something
like this:
A <--> B <--> C
So what are we *supposed* to do in this case? If job A is
still connected to B when it calls FINALIZE, should it block
until jobs B and C also call FINALIZE?
After lengthy discussions many times over the course of this
project, the issue was finally decided at the Louisville Feb
2009 meeting: no.
Rationale:
- "Collective" does not mean synchronizing. It only means that
every process call it. Hence, in this scenario, every
process in A, B, and C must call FINALIZE.
- KEY POINT: if A calls FINALIZE, then it is erroneous for B or
C to try to communicate with A again.
- Hence, OMPI is *correct* to only effect a barrier across each
jobs' MPI_COMM_WORLD before exiting. Specifically, if A
calls FINALIZE long before B or C, it's *correct* if A exits
at any time (and doesn't notify B or C that it is exiting).
- Arguably, if B or C do try to communicate with the now-gone
A, OMPI should try to print a nice error ("you tried to
communicate with a job that is already gone...") instead of
segv or other Badness. However, that is an *extremely*
difficult problem -- sure, it's easy for A to tell B that it
is finalizing, but how can A tell C? A doesn't even know
about C. You'd need to construct a "connected" graph in a
distributed fashion, which is fraught with race conditions,
etc.
Hence, our conclusion is: OMPI is *correct* in its current
behavior (of only doing a barrier across its own COMM_WORLD)
before exiting. Any problems that occur are as a result of
erroneous MPI applications. We *could* tighten up the erroneous
cases and ensure that we print nice error messages / don't
crash, but that is such a difficult problem that we decided we
have many other, much higher priority issues to handle that deal
with non-erroneous cases. */
/* wait for everyone to reach this point
This is a grpcomm barrier instead of an MPI barrier because an
MPI barrier doesn't ensure that all messages have been transmitted
before exiting, so the possibility of a stranded message exists.
*/
coll = OBJ_NEW(ompi_rte_collective_t);
coll->id = ompi_process_info.peer_fini_barrier;
coll->active = true;
if (OMPI_SUCCESS != (ret = ompi_rte_barrier(coll))) {
OMPI_ERROR_LOG(ret);
return ret;
}
/* wait for barrier to complete */
OMPI_LAZY_WAIT_FOR_COMPLETION(coll->active);
OBJ_RELEASE(coll);
/* check for timing request - get stop time and report elapsed
time if so */
if (ompi_enable_timing && 0 == OMPI_PROC_MY_NAME->vpid) {
gettimeofday(&ompistop, NULL);
opal_output(0, "ompi_mpi_finalize[%ld]: time to execute barrier %ld usec",
(long)OMPI_PROC_MY_NAME->vpid,
(long int)((ompistop.tv_sec - ompistart.tv_sec)*1000000 +
(ompistop.tv_usec - ompistart.tv_usec)));
}
/*
* Shutdown the Checkpoint/Restart Mech.
*/
if (OMPI_SUCCESS != (ret = ompi_cr_finalize())) {
OMPI_ERROR_LOG(ret);
}
/* Shut down any bindings-specific issues: C++, F77, F90 */
/* Remove all memory associated by MPI_REGISTER_DATAREP (per
MPI-2:9.5.3, there is no way for an MPI application to
*un*register datareps, but we don't want the OMPI layer causing
memory leaks). */
while (NULL != (item = opal_list_remove_first(&ompi_registered_datareps))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&ompi_registered_datareps);
/* Remove all F90 types from the hash tables. As the OBJ_DESTRUCT will
* call a special destructor able to release predefined types, we can
* simply call the OBJ_DESTRUCT on the hash table and all memory will
* be correctly released.
*/
OBJ_DESTRUCT( &ompi_mpi_f90_integer_hashtable );
OBJ_DESTRUCT( &ompi_mpi_f90_real_hashtable );
OBJ_DESTRUCT( &ompi_mpi_f90_complex_hashtable );
/* Free communication objects */
/* free file resources */
if (OMPI_SUCCESS != (ret = ompi_file_finalize())) {
return ret;
}
/* free window resources */
if (OMPI_SUCCESS != (ret = ompi_win_finalize())) {
return ret;
}
if (OMPI_SUCCESS != (ret = ompi_osc_base_finalize())) {
return ret;
}
/* free pml resource */
if(OMPI_SUCCESS != (ret = mca_pml_base_finalize())) {
return ret;
}
/* free communicator resources */
if (OMPI_SUCCESS != (ret = ompi_comm_finalize())) {
return ret;
}
/* free requests */
if (OMPI_SUCCESS != (ret = ompi_request_finalize())) {
return ret;
}
if (OMPI_SUCCESS != (ret = ompi_message_finalize())) {
return ret;
}
/* If requested, print out a list of memory allocated by ALLOC_MEM
but not freed by FREE_MEM */
if (0 != ompi_debug_show_mpi_alloc_mem_leaks) {
mca_mpool_base_tree_print();
}
/* Now that all MPI objects dealing with communications are gone,
shut down MCA types having to do with communications */
if (OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_pml_base_framework) ) ) {
OMPI_ERROR_LOG(ret);
return ret;
}
/* shut down buffered send code */
mca_pml_base_bsend_fini();
#if OPAL_ENABLE_FT_CR == 1
/*
* Shutdown the CRCP Framework, must happen after PML shutdown
*/
if (OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_crcp_base_framework) ) ) {
OMPI_ERROR_LOG(ret);
return ret;
}
#endif
/* Free secondary resources */
/* free attr resources */
if (OMPI_SUCCESS != (ret = ompi_attr_finalize())) {
return ret;
}
/* free group resources */
if (OMPI_SUCCESS != (ret = ompi_group_finalize())) {
return ret;
}
/* free proc resources */
if ( OMPI_SUCCESS != (ret = ompi_proc_finalize())) {
return ret;
}
/* finalize the pubsub functions */
if (OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_pubsub_base_framework) ) ) {
return ret;
}
/* finalize the DPM framework */
if ( OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_dpm_base_framework))) {
return ret;
}
/* free internal error resources */
if (OMPI_SUCCESS != (ret = ompi_errcode_intern_finalize())) {
return ret;
}
/* free error code resources */
if (OMPI_SUCCESS != (ret = ompi_mpi_errcode_finalize())) {
return ret;
}
/* free errhandler resources */
if (OMPI_SUCCESS != (ret = ompi_errhandler_finalize())) {
return ret;
}
/* Free all other resources */
/* free op resources */
if (OMPI_SUCCESS != (ret = ompi_op_finalize())) {
return ret;
}
/* free ddt resources */
if (OMPI_SUCCESS != (ret = ompi_datatype_finalize())) {
return ret;
}
/* free info resources */
if (OMPI_SUCCESS != (ret = ompi_info_finalize())) {
return ret;
}
/* Close down MCA modules */
/* io is opened lazily, so it's only necessary to close it if it
was actually opened */
if (0 < ompi_io_base_framework.framework_refcnt) {
/* May have been "opened" multiple times. We want it closed now */
ompi_io_base_framework.framework_refcnt = 1;
if (OMPI_SUCCESS != mca_base_framework_close(&ompi_io_base_framework)) {
return ret;
}
}
(void) mca_base_framework_close(&ompi_topo_base_framework);
if (OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_osc_base_framework))) {
return ret;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_coll_base_framework))) {
return ret;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_bml_base_framework))) {
return ret;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_mpool_base_framework))) {
return ret;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_rcache_base_framework))) {
return ret;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_allocator_base_framework))) {
return ret;
}
if (NULL != ompi_mpi_main_thread) {
OBJ_RELEASE(ompi_mpi_main_thread);
ompi_mpi_main_thread = NULL;
}
/* Leave the RTE */
if (OMPI_SUCCESS != (ret = ompi_rte_finalize())) {
return ret;
}
/* now close the rte framework */
if (OMPI_SUCCESS != (ret = mca_base_framework_close(&ompi_rte_base_framework) ) ) {
OMPI_ERROR_LOG(ret);
return ret;
}
if (OPAL_SUCCESS != (ret = opal_finalize_util())) {
return ret;
}
/* All done */
return MPI_SUCCESS;
}
int mca_pml_ob1_ft_event( int state )
{
static bool first_continue_pass = false;
ompi_proc_t** procs = NULL;
size_t num_procs;
int ret, p;
ompi_rte_collective_t *coll, *modex;
coll = OBJ_NEW(ompi_rte_collective_t);
coll->id = ompi_process_info.peer_init_barrier;
if(OPAL_CRS_CHECKPOINT == state) {
if( opal_cr_timing_barrier_enabled ) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_CRCPBR1);
ompi_rte_barrier(coll);
OMPI_WAIT_FOR_COMPLETION(coll->active);
}
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2P0);
}
else if(OPAL_CRS_CONTINUE == state) {
first_continue_pass = !first_continue_pass;
if( !first_continue_pass ) {
if( opal_cr_timing_barrier_enabled ) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_COREBR0);
ompi_rte_barrier(coll);
OMPI_WAIT_FOR_COMPLETION(coll->active);
}
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2P2);
}
if( orte_cr_continue_like_restart && !first_continue_pass ) {
/*
* Get a list of processes
*/
procs = ompi_proc_all(&num_procs);
if(NULL == procs) {
ret = OMPI_ERR_OUT_OF_RESOURCE;
goto clean;
}
/*
* Refresh the proc structure, and publish our proc info in the modex.
* NOTE: Do *not* call ompi_proc_finalize as there are many places in
* the code that point to indv. procs in this strucutre. For our
* needs here we only need to fix up the modex, bml and pml
* references.
*/
if (OMPI_SUCCESS != (ret = ompi_proc_refresh())) {
opal_output(0,
"pml:ob1: ft_event(Restart): proc_refresh Failed %d",
ret);
for(p = 0; p < (int)num_procs; ++p) {
OBJ_RELEASE(procs[p]);
}
free (procs);
goto clean;
}
}
}
else if(OPAL_CRS_RESTART_PRE == state ) {
/* Nothing here */
}
else if(OPAL_CRS_RESTART == state ) {
/*
* Get a list of processes
*/
procs = ompi_proc_all(&num_procs);
if(NULL == procs) {
ret = OMPI_ERR_OUT_OF_RESOURCE;
goto clean;
}
/*
* Clean out the modex information since it is invalid now.
* ompi_rte_purge_proc_attrs();
* This happens at the ORTE level, so doing it again here will cause
* some issues with socket caching.
*/
/*
* Refresh the proc structure, and publish our proc info in the modex.
* NOTE: Do *not* call ompi_proc_finalize as there are many places in
* the code that point to indv. procs in this strucutre. For our
* needs here we only need to fix up the modex, bml and pml
* references.
*/
if (OMPI_SUCCESS != (ret = ompi_proc_refresh())) {
opal_output(0,
"pml:ob1: ft_event(Restart): proc_refresh Failed %d",
ret);
for(p = 0; p < (int)num_procs; ++p) {
OBJ_RELEASE(procs[p]);
}
free (procs);
goto clean;
}
}
else if(OPAL_CRS_TERM == state ) {
;
}
else {
;
}
/* Call the BML
* BML is expected to call ft_event in
* - BTL(s)
* - MPool(s)
*/
if( OMPI_SUCCESS != (ret = mca_bml.bml_ft_event(state))) {
opal_output(0, "pml:base: ft_event: BML ft_event function failed: %d\n",
ret);
}
if(OPAL_CRS_CHECKPOINT == state) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2P1);
if( opal_cr_timing_barrier_enabled ) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2PBR0);
/* JJH Cannot barrier here due to progress engine -- ompi_rte_barrier();*/
}
}
else if(OPAL_CRS_CONTINUE == state) {
if( !first_continue_pass ) {
if( opal_cr_timing_barrier_enabled ) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2PBR1);
ompi_rte_barrier(coll);
OMPI_WAIT_FOR_COMPLETION(coll->active);
}
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2P3);
}
if( orte_cr_continue_like_restart && !first_continue_pass ) {
/*
* Exchange the modex information once again.
* BTLs will have republished their modex information.
*/
modex = OBJ_NEW(ompi_rte_collective_t);
modex->id = ompi_process_info.peer_modex;
if (OMPI_SUCCESS != (ret = orte_grpcomm.modex(modex))) {
opal_output(0,
"pml:ob1: ft_event(Restart): Failed orte_grpcomm.modex() = %d",
ret);
OBJ_RELEASE(modex);
goto clean;
}
OMPI_WAIT_FOR_COMPLETION(modex->active);
OBJ_RELEASE(modex);
/*
* Startup the PML stack now that the modex is running again
* Add the new procs (BTLs redo modex recv's)
*/
if( OMPI_SUCCESS != (ret = mca_pml_ob1_add_procs(procs, num_procs) ) ) {
opal_output(0, "pml:ob1: ft_event(Restart): Failed in add_procs (%d)", ret);
goto clean;
}
/* Is this barrier necessary ? JJH */
if (OMPI_SUCCESS != (ret = ompi_rte_barrier(coll))) {
opal_output(0, "pml:ob1: ft_event(Restart): Failed in ompi_rte_barrier (%d)", ret);
goto clean;
}
OMPI_WAIT_FOR_COMPLETION(coll->active);
if( NULL != procs ) {
for(p = 0; p < (int)num_procs; ++p) {
OBJ_RELEASE(procs[p]);
}
free(procs);
procs = NULL;
}
}
if( !first_continue_pass ) {
if( opal_cr_timing_barrier_enabled ) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2PBR2);
ompi_rte_barrier(coll);
OMPI_WAIT_FOR_COMPLETION(coll->active);
}
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_CRCP1);
}
}
else if(OPAL_CRS_RESTART_PRE == state ) {
/* Nothing here */
}
else if(OPAL_CRS_RESTART == state ) {
/*
* Exchange the modex information once again.
* BTLs will have republished their modex information.
*/
modex = OBJ_NEW(ompi_rte_collective_t);
modex->id = ompi_process_info.peer_modex;
if (OMPI_SUCCESS != (ret = orte_grpcomm.modex(modex))) {
opal_output(0,
"pml:ob1: ft_event(Restart): Failed orte_grpcomm.modex() = %d",
ret);
OBJ_RELEASE(modex);
goto clean;
}
OMPI_WAIT_FOR_COMPLETION(modex->active);
OBJ_RELEASE(modex);
/*
* Startup the PML stack now that the modex is running again
* Add the new procs (BTLs redo modex recv's)
*/
if( OMPI_SUCCESS != (ret = mca_pml_ob1_add_procs(procs, num_procs) ) ) {
opal_output(0, "pml:ob1: ft_event(Restart): Failed in add_procs (%d)", ret);
goto clean;
}
/* Is this barrier necessary ? JJH */
if (OMPI_SUCCESS != (ret = ompi_rte_barrier(coll))) {
opal_output(0, "pml:ob1: ft_event(Restart): Failed in ompi_rte_barrier (%d)", ret);
goto clean;
}
OMPI_WAIT_FOR_COMPLETION(coll->active);
if( NULL != procs ) {
for(p = 0; p < (int)num_procs; ++p) {
OBJ_RELEASE(procs[p]);
}
free(procs);
procs = NULL;
}
}
else if(OPAL_CRS_TERM == state ) {
;
}
else {
;
}
ret = OMPI_SUCCESS;
clean:
OBJ_RELEASE(coll);
return ret;
}
int ompi_mpi_init(int argc, char **argv, int requested, int *provided)
{
int ret;
ompi_proc_t** procs;
size_t nprocs;
char *error = NULL;
struct timeval ompistart, ompistop;
bool rte_setup = false;
ompi_rte_collective_t *coll;
char *cmd=NULL, *av=NULL;
/* bitflag of the thread level support provided. To be used
* for the modex in order to work in heterogeneous environments. */
uint8_t threadlevel_bf;
/* Indicate that we have *started* MPI_INIT*. MPI_FINALIZE has
something sorta similar in a static local variable in
ompi_mpi_finalize(). */
ompi_mpi_init_started = true;
/* Setup enough to check get/set MCA params */
if (OPAL_SUCCESS != (ret = opal_init_util(&argc, &argv))) {
error = "ompi_mpi_init: opal_init_util failed";
goto error;
}
/* Register MCA variables */
if (OPAL_SUCCESS != (ret = ompi_register_mca_variables())) {
error = "ompi_mpi_init: ompi_register_mca_variables failed";
goto error;
}
if (OPAL_SUCCESS != (ret = opal_arch_set_fortran_logical_size(sizeof(ompi_fortran_logical_t)))) {
error = "ompi_mpi_init: opal_arch_set_fortran_logical_size failed";
goto error;
}
/* _After_ opal_init_util() but _before_ orte_init(), we need to
set an MCA param that tells libevent that it's ok to use any
mechanism in libevent that is available on this platform (e.g.,
epoll and friends). Per opal/event/event.s, we default to
select/poll -- but we know that MPI processes won't be using
pty's with the event engine, so it's ok to relax this
constraint and let any fd-monitoring mechanism be used. */
ret = mca_base_var_find("opal", "event", "*", "event_include");
if (ret >= 0) {
char *allvalue = "all";
/* We have to explicitly "set" the MCA param value here
because libevent initialization will re-register the MCA
param and therefore override the default. Setting the value
here puts the desired value ("all") in different storage
that is not overwritten if/when the MCA param is
re-registered. This is unless the user has specified a different
value for this MCA parameter. Make sure we check to see if the
default is specified before forcing "all" in case that is not what
the user desires. Note that we do *NOT* set this value as an
environment variable, just so that it won't be inherited by
any spawned processes and potentially cause unintented
side-effects with launching RTE tools... */
mca_base_var_set_value(ret, allvalue, 4, MCA_BASE_VAR_SOURCE_DEFAULT, NULL);
}
if (ompi_enable_timing && 0 == OMPI_PROC_MY_NAME->vpid) {
gettimeofday(&ompistart, NULL);
}
/* if we were not externally started, then we need to setup
* some envars so the MPI_INFO_ENV can get the cmd name
* and argv (but only if the user supplied a non-NULL argv!), and
* the requested thread level
*/
if (NULL == getenv("OMPI_COMMAND") && NULL != argv && NULL != argv[0]) {
asprintf(&cmd, "OMPI_COMMAND=%s", argv[0]);
putenv(cmd);
}
if (NULL == getenv("OMPI_ARGV") && 1 < argc) {
char *tmp;
tmp = opal_argv_join(&argv[1], ' ');
asprintf(&av, "OMPI_ARGV=%s", tmp);
free(tmp);
putenv(av);
}
/* open the rte framework */
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_rte_base_framework, 0))) {
error = "ompi_rte_base_open() failed";
goto error;
}
/* no select is required as this is a static framework */
/* Setup RTE - note that we are an MPI process */
if (OMPI_SUCCESS != (ret = ompi_rte_init(NULL, NULL))) {
error = "ompi_mpi_init: ompi_rte_init failed";
goto error;
}
rte_setup = true;
/* check for timing request - get stop time and report elapsed time if so */
if (ompi_enable_timing && 0 == OMPI_PROC_MY_NAME->vpid) {
gettimeofday(&ompistop, NULL);
opal_output(0, "ompi_mpi_init [%ld]: time from start to completion of rte_init %ld usec",
(long)OMPI_PROC_MY_NAME->vpid,
(long int)((ompistop.tv_sec - ompistart.tv_sec)*1000000 +
(ompistop.tv_usec - ompistart.tv_usec)));
gettimeofday(&ompistart, NULL);
}
#if OPAL_HAVE_HWLOC
/* if hwloc is available but didn't get setup for some
* reason, do so now
*/
if (NULL == opal_hwloc_topology) {
if (OPAL_SUCCESS != (ret = opal_hwloc_base_get_topology())) {
error = "Topology init";
goto error;
}
}
#endif
/* Register the default errhandler callback - RTE will ignore if it
* doesn't support this capability
*/
ompi_rte_register_errhandler(ompi_errhandler_runtime_callback,
OMPI_RTE_ERRHANDLER_LAST);
/* Figure out the final MPI thread levels. If we were not
compiled for support for MPI threads, then don't allow
MPI_THREAD_MULTIPLE. Set this stuff up here early in the
process so that other components can make decisions based on
this value. */
ompi_mpi_thread_level(requested, provided);
/* determine the bitflag belonging to the threadlevel_support provided */
memset ( &threadlevel_bf, 0, sizeof(uint8_t));
OMPI_THREADLEVEL_SET_BITFLAG ( ompi_mpi_thread_provided, threadlevel_bf );
/* add this bitflag to the modex */
if ( OMPI_SUCCESS != (ret = ompi_modex_send_string("MPI_THREAD_LEVEL", &threadlevel_bf, sizeof(uint8_t)))) {
error = "ompi_mpi_init: modex send thread level";
goto error;
}
/* initialize datatypes. This step should be done early as it will
* create the local convertor and local arch used in the proc
* init.
*/
if (OMPI_SUCCESS != (ret = ompi_datatype_init())) {
error = "ompi_datatype_init() failed";
goto error;
}
/* Initialize OMPI procs */
if (OMPI_SUCCESS != (ret = ompi_proc_init())) {
error = "mca_proc_init() failed";
goto error;
}
/* Initialize the op framework. This has to be done *after*
ddt_init, but befor mca_coll_base_open, since some collective
modules (e.g., the hierarchical coll component) may need ops in
their query function. */
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_op_base_framework, 0))) {
error = "ompi_op_base_open() failed";
goto error;
}
if (OMPI_SUCCESS !=
(ret = ompi_op_base_find_available(OMPI_ENABLE_PROGRESS_THREADS,
OMPI_ENABLE_THREAD_MULTIPLE))) {
error = "ompi_op_base_find_available() failed";
goto error;
}
if (OMPI_SUCCESS != (ret = ompi_op_init())) {
error = "ompi_op_init() failed";
goto error;
}
/* Open up MPI-related MCA components */
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_allocator_base_framework, 0))) {
error = "mca_allocator_base_open() failed";
goto error;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_rcache_base_framework, 0))) {
error = "mca_rcache_base_open() failed";
goto error;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_mpool_base_framework, 0))) {
error = "mca_mpool_base_open() failed";
goto error;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_bml_base_framework, 0))) {
error = "mca_bml_base_open() failed";
goto error;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_pml_base_framework, 0))) {
error = "mca_pml_base_open() failed";
goto error;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_coll_base_framework, 0))) {
error = "mca_coll_base_open() failed";
goto error;
}
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_osc_base_framework, 0))) {
error = "ompi_osc_base_open() failed";
goto error;
}
#if OPAL_ENABLE_FT_CR == 1
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_crcp_base_framework, 0))) {
error = "ompi_crcp_base_open() failed";
goto error;
}
#endif
/* In order to reduce the common case for MPI apps (where they
don't use MPI-2 IO or MPI-1 topology functions), the io and
topo frameworks are initialized lazily, at the first use of
relevant functions (e.g., MPI_FILE_*, MPI_CART_*, MPI_GRAPH_*),
so they are not opened here. */
/* Select which MPI components to use */
if (OMPI_SUCCESS !=
(ret = mca_mpool_base_init(OMPI_ENABLE_PROGRESS_THREADS,
OMPI_ENABLE_THREAD_MULTIPLE))) {
error = "mca_mpool_base_init() failed";
goto error;
}
if (OMPI_SUCCESS !=
(ret = mca_pml_base_select(OMPI_ENABLE_PROGRESS_THREADS,
OMPI_ENABLE_THREAD_MULTIPLE))) {
error = "mca_pml_base_select() failed";
goto error;
}
/* check for timing request - get stop time and report elapsed time if so */
if (ompi_enable_timing && 0 == OMPI_PROC_MY_NAME->vpid) {
gettimeofday(&ompistop, NULL);
opal_output(0, "ompi_mpi_init[%ld]: time from completion of rte_init to modex %ld usec",
(long)OMPI_PROC_MY_NAME->vpid,
(long int)((ompistop.tv_sec - ompistart.tv_sec)*1000000 +
(ompistop.tv_usec - ompistart.tv_usec)));
gettimeofday(&ompistart, NULL);
}
/* exchange connection info - this function also acts as a barrier
* as it will not return until the exchange is complete
*/
coll = OBJ_NEW(ompi_rte_collective_t);
coll->id = ompi_process_info.peer_modex;
coll->active = true;
if (OMPI_SUCCESS != (ret = ompi_rte_modex(coll))) {
error = "rte_modex failed";
goto error;
}
/* wait for modex to complete - this may be moved anywhere in mpi_init
* so long as it occurs prior to calling a function that needs
* the modex info!
*/
OMPI_WAIT_FOR_COMPLETION(coll->active);
OBJ_RELEASE(coll);
if (ompi_enable_timing && 0 == OMPI_PROC_MY_NAME->vpid) {
gettimeofday(&ompistop, NULL);
opal_output(0, "ompi_mpi_init[%ld]: time to execute modex %ld usec",
(long)OMPI_PROC_MY_NAME->vpid,
(long int)((ompistop.tv_sec - ompistart.tv_sec)*1000000 +
(ompistop.tv_usec - ompistart.tv_usec)));
gettimeofday(&ompistart, NULL);
}
/* select buffered send allocator component to be used */
if( OMPI_SUCCESS !=
(ret = mca_pml_base_bsend_init(OMPI_ENABLE_THREAD_MULTIPLE))) {
error = "mca_pml_base_bsend_init() failed";
goto error;
}
if (OMPI_SUCCESS !=
(ret = mca_coll_base_find_available(OMPI_ENABLE_PROGRESS_THREADS,
OMPI_ENABLE_THREAD_MULTIPLE))) {
error = "mca_coll_base_find_available() failed";
goto error;
}
if (OMPI_SUCCESS !=
(ret = ompi_osc_base_find_available(OMPI_ENABLE_PROGRESS_THREADS,
OMPI_ENABLE_THREAD_MULTIPLE))) {
error = "ompi_osc_base_find_available() failed";
goto error;
}
#if OPAL_ENABLE_FT_CR == 1
if (OMPI_SUCCESS != (ret = ompi_crcp_base_select() ) ) {
error = "ompi_crcp_base_select() failed";
goto error;
}
#endif
/* io and topo components are not selected here -- see comment
above about the io and topo frameworks being loaded lazily */
/* Initialize each MPI handle subsystem */
/* initialize requests */
if (OMPI_SUCCESS != (ret = ompi_request_init())) {
error = "ompi_request_init() failed";
goto error;
}
if (OMPI_SUCCESS != (ret = ompi_message_init())) {
error = "ompi_message_init() failed";
goto error;
}
/* initialize info */
if (OMPI_SUCCESS != (ret = ompi_info_init())) {
error = "ompi_info_init() failed";
goto error;
}
/* initialize error handlers */
if (OMPI_SUCCESS != (ret = ompi_errhandler_init())) {
error = "ompi_errhandler_init() failed";
goto error;
}
/* initialize error codes */
if (OMPI_SUCCESS != (ret = ompi_mpi_errcode_init())) {
error = "ompi_mpi_errcode_init() failed";
goto error;
}
/* initialize internal error codes */
if (OMPI_SUCCESS != (ret = ompi_errcode_intern_init())) {
error = "ompi_errcode_intern_init() failed";
goto error;
}
/* initialize groups */
if (OMPI_SUCCESS != (ret = ompi_group_init())) {
error = "ompi_group_init() failed";
goto error;
}
/* initialize communicators */
if (OMPI_SUCCESS != (ret = ompi_comm_init())) {
error = "ompi_comm_init() failed";
goto error;
}
/* initialize file handles */
if (OMPI_SUCCESS != (ret = ompi_file_init())) {
error = "ompi_file_init() failed";
goto error;
}
/* initialize windows */
if (OMPI_SUCCESS != (ret = ompi_win_init())) {
error = "ompi_win_init() failed";
goto error;
}
/* initialize attribute meta-data structure for comm/win/dtype */
if (OMPI_SUCCESS != (ret = ompi_attr_init())) {
error = "ompi_attr_init() failed";
goto error;
}
/* identify the architectures of remote procs and setup
* their datatype convertors, if required
*/
if (OMPI_SUCCESS != (ret = ompi_proc_complete_init())) {
error = "ompi_proc_complete_init failed";
goto error;
}
/* If thread support was enabled, then setup OPAL to allow for
them. */
if ((OMPI_ENABLE_PROGRESS_THREADS == 1) ||
(*provided != MPI_THREAD_SINGLE)) {
opal_set_using_threads(true);
}
/* start PML/BTL's */
ret = MCA_PML_CALL(enable(true));
if( OMPI_SUCCESS != ret ) {
error = "PML control failed";
goto error;
}
/* add all ompi_proc_t's to PML */
if (NULL == (procs = ompi_proc_world(&nprocs))) {
error = "ompi_proc_world() failed";
goto error;
}
ret = MCA_PML_CALL(add_procs(procs, nprocs));
free(procs);
/* If we got "unreachable", then print a specific error message.
Otherwise, if we got some other failure, fall through to print
a generic message. */
if (OMPI_ERR_UNREACH == ret) {
opal_show_help("help-mpi-runtime",
"mpi_init:startup:pml-add-procs-fail", true);
error = NULL;
goto error;
} else if (OMPI_SUCCESS != ret) {
error = "PML add procs failed";
goto error;
}
MCA_PML_CALL(add_comm(&ompi_mpi_comm_world.comm));
MCA_PML_CALL(add_comm(&ompi_mpi_comm_self.comm));
/*
* Dump all MCA parameters if requested
*/
if (ompi_mpi_show_mca_params) {
ompi_show_all_mca_params(ompi_mpi_comm_world.comm.c_my_rank,
nprocs,
ompi_process_info.nodename);
}
/* Do we need to wait for a debugger? */
ompi_rte_wait_for_debugger();
/* check for timing request - get stop time and report elapsed
time if so, then start the clock again */
if (ompi_enable_timing && 0 == OMPI_PROC_MY_NAME->vpid) {
gettimeofday(&ompistop, NULL);
opal_output(0, "ompi_mpi_init[%ld]: time from modex to first barrier %ld usec",
(long)OMPI_PROC_MY_NAME->vpid,
(long int)((ompistop.tv_sec - ompistart.tv_sec)*1000000 +
(ompistop.tv_usec - ompistart.tv_usec)));
gettimeofday(&ompistart, NULL);
}
/* wait for everyone to reach this point */
coll = OBJ_NEW(ompi_rte_collective_t);
coll->id = ompi_process_info.peer_init_barrier;
coll->active = true;
if (OMPI_SUCCESS != (ret = ompi_rte_barrier(coll))) {
error = "rte_barrier failed";
goto error;
}
/* wait for barrier to complete */
OMPI_WAIT_FOR_COMPLETION(coll->active);
OBJ_RELEASE(coll);
/* check for timing request - get stop time and report elapsed
time if so, then start the clock again */
if (ompi_enable_timing && 0 == OMPI_PROC_MY_NAME->vpid) {
gettimeofday(&ompistop, NULL);
opal_output(0, "ompi_mpi_init[%ld]: time to execute barrier %ld usec",
(long)OMPI_PROC_MY_NAME->vpid,
(long int)((ompistop.tv_sec - ompistart.tv_sec)*1000000 +
(ompistop.tv_usec - ompistart.tv_usec)));
gettimeofday(&ompistart, NULL);
}
#if OMPI_ENABLE_PROGRESS_THREADS == 0
/* Start setting up the event engine for MPI operations. Don't
block in the event library, so that communications don't take
forever between procs in the dynamic code. This will increase
CPU utilization for the remainder of MPI_INIT when we are
blocking on RTE-level events, but may greatly reduce non-TCP
latency. */
opal_progress_set_event_flag(OPAL_EVLOOP_NONBLOCK);
#endif
/* wire up the mpi interface, if requested. Do this after the
non-block switch for non-TCP performance. Do before the
polling change as anyone with a complex wire-up is going to be
using the oob. */
if (OMPI_SUCCESS != (ret = ompi_init_preconnect_mpi())) {
error = "ompi_mpi_do_preconnect_all() failed";
goto error;
}
/* Setup the publish/subscribe (PUBSUB) framework */
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_pubsub_base_framework, 0))) {
error = "mca_pubsub_base_open() failed";
goto error;
}
if (OMPI_SUCCESS != (ret = ompi_pubsub_base_select())) {
error = "ompi_pubsub_base_select() failed";
goto error;
}
/* Setup the dynamic process management (DPM) framework */
if (OMPI_SUCCESS != (ret = mca_base_framework_open(&ompi_dpm_base_framework, 0))) {
error = "ompi_dpm_base_open() failed";
goto error;
}
if (OMPI_SUCCESS != (ret = ompi_dpm_base_select())) {
error = "ompi_dpm_base_select() failed";
goto error;
}
/* Determine the overall threadlevel support of all processes
in MPI_COMM_WORLD. This has to be done before calling
coll_base_comm_select, since some of the collective components
e.g. hierarch, might create subcommunicators. The threadlevel
requested by all processes is required in order to know
which cid allocation algorithm can be used. */
if ( OMPI_SUCCESS !=
( ret = ompi_comm_cid_init ())) {
error = "ompi_mpi_init: ompi_comm_cid_init failed";
goto error;
}
/* Init coll for the comms. This has to be after dpm_base_select,
(since dpm.mark_dyncomm is not set in the communicator creation
function else), but before dpm.dyncom_init, since this function
might require collective for the CID allocation. */
if (OMPI_SUCCESS !=
(ret = mca_coll_base_comm_select(MPI_COMM_WORLD))) {
error = "mca_coll_base_comm_select(MPI_COMM_WORLD) failed";
goto error;
}
if (OMPI_SUCCESS !=
(ret = mca_coll_base_comm_select(MPI_COMM_SELF))) {
error = "mca_coll_base_comm_select(MPI_COMM_SELF) failed";
goto error;
}
/* Check whether we have been spawned or not. We introduce that
at the very end, since we need collectives, datatypes, ptls
etc. up and running here.... */
if (OMPI_SUCCESS != (ret = ompi_dpm.dyn_init())) {
error = "ompi_comm_dyn_init() failed";
goto error;
}
/*
* Startup the Checkpoint/Restart Mech.
* Note: Always do this so tools don't hang when
* in a non-checkpointable build
*/
if (OMPI_SUCCESS != (ret = ompi_cr_init())) {
error = "ompi_cr_init";
goto error;
}
/* Undo OPAL calling opal_progress_event_users_increment() during
opal_init, to get better latency when not using TCP. Do
this *after* dyn_init, as dyn init uses lots of RTE
communication and we don't want to hinder the performance of
that code. */
opal_progress_event_users_decrement();
/* see if yield_when_idle was specified - if so, use it */
opal_progress_set_yield_when_idle(ompi_mpi_yield_when_idle);
/* negative value means use default - just don't do anything */
if (ompi_mpi_event_tick_rate >= 0) {
opal_progress_set_event_poll_rate(ompi_mpi_event_tick_rate);
}
/* At this point, we are fully configured and in MPI mode. Any
communication calls here will work exactly like they would in
the user's code. Setup the connections between procs and warm
them up with simple sends, if requested */
if (OMPI_SUCCESS != (ret = ompi_mpiext_init())) {
error = "ompi_mpiext_init";
goto error;
}
/* Fall through */
error:
if (ret != OMPI_SUCCESS) {
/* Only print a message if one was not already printed */
if (NULL != error) {
const char *err_msg = opal_strerror(ret);
/* If RTE was not setup yet, don't use opal_show_help */
if (rte_setup) {
opal_show_help("help-mpi-runtime",
"mpi_init:startup:internal-failure", true,
"MPI_INIT", "MPI_INIT", error, err_msg, ret);
} else {
opal_show_help("help-mpi-runtime",
"mpi_init:startup:internal-failure", true,
"MPI_INIT", "MPI_INIT", error, err_msg, ret);
}
}
return ret;
}
/* Initialize the registered datarep list to be empty */
OBJ_CONSTRUCT(&ompi_registered_datareps, opal_list_t);
/* Initialize the arrays used to store the F90 types returned by the
* MPI_Type_create_f90_XXX functions.
*/
OBJ_CONSTRUCT( &ompi_mpi_f90_integer_hashtable, opal_hash_table_t);
opal_hash_table_init(&ompi_mpi_f90_integer_hashtable, 16 /* why not? */);
OBJ_CONSTRUCT( &ompi_mpi_f90_real_hashtable, opal_hash_table_t);
opal_hash_table_init(&ompi_mpi_f90_real_hashtable, FLT_MAX_10_EXP);
OBJ_CONSTRUCT( &ompi_mpi_f90_complex_hashtable, opal_hash_table_t);
opal_hash_table_init(&ompi_mpi_f90_complex_hashtable, FLT_MAX_10_EXP);
/* All done. Wasn't that simple? */
ompi_mpi_initialized = true;
/* check for timing request - get stop time and report elapsed time if so */
if (ompi_enable_timing && 0 == OMPI_PROC_MY_NAME->vpid) {
gettimeofday(&ompistop, NULL);
opal_output(0, "ompi_mpi_init[%ld]: time from barrier to complete mpi_init %ld usec",
(long)OMPI_PROC_MY_NAME->vpid,
(long int)((ompistop.tv_sec - ompistart.tv_sec)*1000000 +
(ompistop.tv_usec - ompistart.tv_usec)));
}
return MPI_SUCCESS;
}
int mca_bml_r2_ft_event(int state)
{
#if OPAL_ENABLE_FT_CR == 1
static bool first_continue_pass = false;
ompi_proc_t** procs = NULL;
size_t num_procs;
size_t btl_idx;
int ret, p;
int loc_state;
int param_type = -1;
const char **btl_list;
ompi_rte_collective_t coll;
if(OPAL_CRS_CHECKPOINT == state) {
/* Do nothing for now */
}
else if(OPAL_CRS_CONTINUE == state) {
first_continue_pass = !first_continue_pass;
/* Since nothing in Checkpoint, we are fine here (unless required by BTL) */
if( orte_cr_continue_like_restart && !first_continue_pass) {
procs = ompi_proc_all(&num_procs);
if(NULL == procs) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
}
}
else if(OPAL_CRS_RESTART_PRE == state ) {
/* Nothing here */
}
else if(OPAL_CRS_RESTART == state ) {
procs = ompi_proc_all(&num_procs);
if(NULL == procs) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
}
else if(OPAL_CRS_TERM == state ) {
;
}
else {
;
}
/* Never call the ft_event functions attached to the BTLs on the second
* pass of RESTART since on the first pass they were unloaded and therefore
* no longer exist.
*/
if( OPAL_CRS_RESTART != state ) {
if( OPAL_CRS_CONTINUE == state && !first_continue_pass ) {
;
} else {
/* Since we only ever call into the BTLs once during the first restart
* pass, just lie to them on this pass for a bit of local clarity.
*/
if( OPAL_CRS_RESTART_PRE == state ) {
loc_state = OPAL_CRS_RESTART;
} else {
loc_state = state;
}
/*
* Call ft_event in:
* - BTL modules
* - MPool modules
*
* These should be cleaning out stale state, and memory references in
* preparation for being shut down.
*/
for(btl_idx = 0; btl_idx < mca_bml_r2.num_btl_modules; btl_idx++) {
/*
* Notify Mpool
*/
if( NULL != (mca_bml_r2.btl_modules[btl_idx])->btl_mpool &&
NULL != (mca_bml_r2.btl_modules[btl_idx])->btl_mpool->mpool_ft_event ) {
opal_output_verbose(10, ompi_cr_output,
"bml:r2: ft_event: Notify the %s MPool.\n",
(mca_bml_r2.btl_modules[btl_idx])->btl_mpool->mpool_component->mpool_version.mca_component_name);
if(OMPI_SUCCESS != (ret = (mca_bml_r2.btl_modules[btl_idx])->btl_mpool->mpool_ft_event(loc_state) ) ) {
continue;
}
}
/*
* Notify BTL
*/
if( NULL != (mca_bml_r2.btl_modules[btl_idx])->btl_ft_event) {
opal_output_verbose(10, ompi_cr_output,
"bml:r2: ft_event: Notify the %s BTL.\n",
(mca_bml_r2.btl_modules[btl_idx])->btl_component->btl_version.mca_component_name);
if(OMPI_SUCCESS != (ret = (mca_bml_r2.btl_modules[btl_idx])->btl_ft_event(loc_state) ) ) {
continue;
}
}
}
} /* OPAL_CRS_CONTINUE == state && !first_continue_pass */
}
if(OPAL_CRS_CHECKPOINT == state) {
;
}
else if(OPAL_CRS_CONTINUE == state) {
/* Matches OPAL_CRS_RESTART_PRE */
if( orte_cr_continue_like_restart && first_continue_pass) {
if( OMPI_SUCCESS != (ret = mca_bml_r2_finalize()) ) {
opal_output(0, "bml:r2: ft_event(Restart): Failed to finalize BML framework\n");
return ret;
}
if( OMPI_SUCCESS != (ret = mca_base_framework_close(&opal_btl_base_framework)) ) {
opal_output(0, "bml:r2: ft_event(Restart): Failed to close BTL framework\n");
return ret;
}
}
/* Matches OPAL_CRS_RESTART */
else if( orte_cr_continue_like_restart && !first_continue_pass ) {
/*
* Barrier to make all processes have been successfully restarted before
* we try to remove some restart only files.
*/
OBJ_CONSTRUCT(&coll, ompi_rte_collective_t);
coll.id = ompi_process_info.peer_init_barrier;
if (OMPI_SUCCESS != (ret = ompi_rte_barrier(&coll))) {
opal_output(0, "bml:r2: ft_event(Restart): Failed in ompi_rte_barrier (%d)", ret);
return ret;
}
while (coll.active) {
opal_progress();
}
/*
* Re-open the BTL framework to get the full list of components.
*/
if( OMPI_SUCCESS != (ret = mca_base_framework_open(&opal_btl_base_framework, 0)) ) {
opal_output(0, "bml:r2: ft_event(Restart): Failed to open BTL framework\n");
return ret;
}
/*
* Re-select the BTL components/modules
* This will cause the BTL components to discover the available
* network options on this machine, and post proper modex informaiton.
*/
if( OMPI_SUCCESS != (ret = mca_btl_base_select(OPAL_ENABLE_PROGRESS_THREADS,
OMPI_ENABLE_THREAD_MULTIPLE) ) ) {
opal_output(0, "bml:r2: ft_event(Restart): Failed to select in BTL framework\n");
return ret;
}
/*
* Clear some structures so we can properly repopulate them
*/
mca_bml_r2.btls_added = false;
for(p = 0; p < (int)num_procs; ++p) {
if( NULL != procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML]) {
OBJ_RELEASE(procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML]);
procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML] = NULL;
}
OBJ_RELEASE(procs[p]);
}
if( NULL != procs ) {
free(procs);
procs = NULL;
}
}
}
else if(OPAL_CRS_RESTART_PRE == state ) {
opal_output_verbose(10, ompi_cr_output,
"bml:r2: ft_event(Restart): Finalize BML\n");
/*
* Finalize the BML
* - Flush progress functions
* - Flush module references
* - mca_btl_base_close()
* Need to do this because we may have BTL components that were
* unloaded in the first selection that may be available now.
* Conversely we may have BTL components loaded now that
* are not available now.
*/
if( OMPI_SUCCESS != (ret = mca_bml_r2_finalize()) ) {
opal_output(0, "bml:r2: ft_event(Restart): Failed to finalize BML framework\n");
return ret;
}
if( OMPI_SUCCESS != (ret = mca_base_framework_close(&opal_btl_base_framework)) ) {
opal_output(0, "bml:r2: ft_event(Restart): Failed to close BTL framework\n");
return ret;
}
}
else if(OPAL_CRS_RESTART == state ) {
/*
* Barrier to make all processes have been successfully restarted before
* we try to remove some restart only files.
*/
OBJ_CONSTRUCT(&coll, ompi_rte_collective_t);
coll.id = ompi_process_info.peer_init_barrier;
if (OMPI_SUCCESS != (ret = ompi_rte_barrier(&coll))) {
opal_output(0, "bml:r2: ft_event(Restart): Failed in ompi_rte_barrier (%d)", ret);
return ret;
}
while (coll.active) {
opal_progress();
}
/*
* Re-open the BTL framework to get the full list of components.
* - but first clear the MCA value that was there
*/
param_type = mca_base_var_find("ompi", "btl", NULL, NULL);
btl_list = NULL;
mca_base_var_get_value(param_type, &btl_list, NULL, NULL);
opal_output_verbose(11, ompi_cr_output,
"Restart (Previous BTL MCA): <%s>\n", btl_list ? btl_list[0] : "");
if( OMPI_SUCCESS != (ret = mca_base_framework_open(&opal_btl_base_framework, 0)) ) {
opal_output(0, "bml:r2: ft_event(Restart): Failed to open BTL framework\n");
return ret;
}
/* The reregistered paramter is guaranteed to have the same index */
btl_list = NULL;
mca_base_var_get_value(param_type, &btl_list, NULL, NULL);
opal_output_verbose(11, ompi_cr_output,
"Restart (New BTL MCA): <%s>\n", btl_list ? btl_list[0] : "");
if( NULL != btl_list ) {
free(btl_list);
btl_list = NULL;
}
/*
* Re-select the BTL components/modules
* This will cause the BTL components to discover the available
* network options on this machine, and post proper modex informaiton.
*/
if( OMPI_SUCCESS != (ret = mca_btl_base_select(OPAL_ENABLE_PROGRESS_THREADS,
OMPI_ENABLE_THREAD_MULTIPLE) ) ) {
opal_output(0, "bml:r2: ft_event(Restart): Failed to select in BTL framework\n");
return ret;
}
/*
* Clear some structures so we can properly repopulate them
*/
mca_bml_r2.btls_added = false;
for(p = 0; p < (int)num_procs; ++p) {
if( NULL != procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML]) {
OBJ_RELEASE(procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML]);
procs[p]->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_BML] = NULL;
}
OBJ_RELEASE(procs[p]);
}
if( NULL != procs ) {
free(procs);
procs = NULL;
}
}
else if(OPAL_CRS_TERM == state ) {
;
}
else {
;
}
#endif
return OMPI_SUCCESS;
}
